Shock-absorber arm



G. ROBINSON.

SHOCK ABSORBER ARM.

APPLICATION FILED rea. o. 99.

Patented Sept. 2, 1919.

3 S IE AIENT FFIC -i `'(rILEs ROBINSON; or CHICAG, rLnIiaoIS, AssIGNoeg o wILcox rnEssED STEEL i comream oF CEICAGO, ILLINOIS, A CORPQBATION .on ILLINOIS.

To a'll'wiiom itjmay concm citizen-of `the United States, residing at` Be itknown that I, GILEs RoBmsoN, a

Chicago, in the county of Cook and State of lllnojs-, have nVenteda new and useful Improvenent' in Shock-Absorber Arms, of

` L which` the following is a specification.

" i `*lVIy invention relates more particularly to 4 anove'l, simple, and highly durable Construction'of double-almfor Shock absorbers of the'cantaliver type;` These arms are pvoted at one end to the chassis of the automobile e and at their opposite: ends are connected i .with springswh'ch depend from the-body of the car, the body-supporting springs of the car'being' ivotall y connectedwth .the arms intermediatethe :ends of the latter, thereby producing an action similar to a cantaliver.

These arms are' formedof a pair of paralr lelb'arspivoted' as above explained andconnected together` to produce a rigd unitary structure, `but as they `have been heretofore comnonly manufaetured it has necesstated the punchi g of ho'les in the `'members formingthe arm and thep'ro'vision of a member riVeted thereto,. with the result* :the .arms

were: unduly:weakenedyand the rivets work destroying, the eiiiciency of the arm. i i r My primary object isto provide a novel,

simpleydurable and economical' Construction of double'- arm.

v Referring to the ac'companying drawing,`

Fi'gure l is aview in elevation offia, portion of the frontaxle and the adj accnttportion of the body, shown as equipped with a Shock absorber, the ,double-arm of which is constructed ina accerdance with my; inventiom` Fig.` 2 is aplan View\ of the` double-arm. F'g. 3', a section taken at the line 3 onFg. 2, and Viewed in the direction ofthe arrow; and Fig. 4:, a section taken` at the line 4 on Fig, 3 and Viewed ,in the direction of the arrow.. 1 i

,Referriirg more particularly to Fig. 1, one end of `'the 1front axle of an automobile s represented at 4& and carries the steering ii knucklerepresented :at 5 this axle being pro-` vided withfthe usual upwardly extending member or perch, 6. Above the aXle 4: is the i body 7 of the automobile which carries the leaf springs, one only :of which is represented at 8, the springs being held in place to the body by i the: shackles, sone-of i'which is represen ted at 9 in accordance with common 'SEOGK- SOR ER AR.M

u Specificationof Lettrsraten.

Application filed February '10, 1919; Serial No. 276.054. u I

practice, i t being underst'ood that the View in Fg. l s taken looking toward the front ot the automobile. Pivotally supported, as

indicatedat 10 on the perch (3, is the doublearm structure represented at 11 which is connected at its other ends, with the lower ends of coiled sprngs 12, one only of which is shown, these springs being connected with the shackles 9. The adjaeent end of the v members ll are connected together through the medium ot' a band 18 preferably of sheet stcelwhich extends across the upper surfaces of the portions 15 and the space therebetween, `thence across` the' outer lateral sur faces of' the members 15 and the 'bottom surfaces thereof and preferably only part-wayr across the inner surfaces of the portions 15-, thisband very tightly embracing the portions 15 `at the surfaces stated and preferably being formed with the downwardlyoflset portion 19 to cause shoulders 20 to be formed-adjacent the inner surfaces of the portions 15. i i V It will be understood from the foregoing by providing the band 18 of relativcly rigid' materiahthe members 1-l will be tightly gripped bythe band in-spaced relation and held -igidly relative to each other, in the* original position in which they are connected together, without danger of becoming disarranged. i a

In 'the forning of the double-arm struc-` ture it is preferred that the members 14 be bent to theshape shown and the connecting' band 18* likewise to the shape shown, excepting` `for the portions thei-cof which extend across theundersides of the members 11 and nip' along the :inner sidesthereof, as separate i andindepen'dent Operations, and the parts: united by applying the band 18 to the membei-51 1 to cause the latter to extend at :the upp'er' 'edges of their po'tions 15 into the channelis jo roi ided the bhnd 'the sholders and; the portions laterally there'beyond; 'to' i position` the i m mg r n r ;in the proper position,relativ'e' to each: other, andthe members so ;Lssembled ntroduced i into any suitable press for finishing 'the bending of the ben'dlStothe position shown i in: Fig: 3 to" efi'ecttherigid-clamp ng to i I rgether of the parts.- I

The connection between the arin ?structure 11-a`ndthe link 13 is through the medium of the'bolt 14 which extends through ahmng openingsl in the members 14 and; open-- x i ings' 22 and 237 in theband 18 whereby a yided'.

f It will be broadrbearing surface for the bolt is proanddurable. i v

'While Ihave illustrated and describedla particularf Construction embodying my v in-' Vention, I do not wish to be understood as ;intendng to lmt it thereto, as the same maybe yerio'usly modified and altered withti on.

5 out'departing'from thespirit of' my inven- What'I claim asnew anddesire to secure "by Letters Patent is v 1.- In a 'vehicle, the combination 'with' body'- and ;the structure upon which it," is e j supported, of &doublearm device compris- I ing zt'pair ofmembers'a'rranged side by side e infspaced ;relation andaiband -connecting i "said membersj together, said band extending: x crosswise of sa-id members and presenting upperand lower Channels into which the upper and lower edges of sa-dmembers snugly. xtend v pivoted at' oneend to said structure, a spring interposedbetween said structureand body and'connected -withsad double-arm between the ends of' the letter, and 'springs connected 1 -with said body and with the other ends, respectively, ofsaid members. s

,2.In a' Vehicle, the 'combination'with its body and the 'structure upon which it" is i and presenting' uoper` and: lower ,Channels supported,of a double-arm devce comprs-* ing apairof members arranged side by side i in 'spaced relation, and -each .inwardly deflected between its ends to, present 'spaced shoulders, and a ban-d connectng said members together, said band extending crosswise of said members and between saidshoulders into which the upper end lower 'edgesof said members i snugly extend said doublearm being rpivoted -at oneend to said structure,'a spring interposed between said structure and body and connected with {said v duble-armbetWeenthe ends of the latter,-`

dpiesof this patent maybe qbtained for e readily understood from 'the ,foregoingflthat by constructng 'the arm in" accordancewith my nvention it may be made Very economically, and is very strong:

said" double arm being i 3. *In a VehcIe,

and springs conne cted with said' body and* said i i the combintion with its body and the structure upon which itisisupported, of double-arm device comprising a pir of members arranged side bysidein spaced relaton, and a band connecting said members; ;togther, ;said 'band extending crosswise of said members andi provided ;with a downwardly deflected. section between j 7 its ends presenting shoulders which together withthe adjacent portionsjof theband form channelsfor theuppenedges of saidmem- I i bers, said band ;at 'its *lower portion presente i ing Channels intowhih the lower edges ofg said members'extend; saidimembers' being; '807 double-arm 'being pivoted atone end'to saidxf 4 i i snugly' confined in said Channels; ;said

structure, a spring interposed between said structure and body and connected with said double-arm between the ends of the letter,

and springs connected with said: body; and

members;

.35, withithe other endsg respectively, otr-said" i %LA fidouble arm structure' 'forgshck.-

absorbers, c omprising a `pair ofmembers i 'i arranged side by side in spaced Ifelaton and., each inwardly deflectedbetween'ts endsgto present spacedshoulders, and 'a band con.

necting i said members together, .seid ba d extending .crosswise of said ;members ;and between saidshoulders ntsa'id deflectedrportions. to extend between' sai d shouldersgsa-id band being formedwith a downwardlyde flected portion 'forming spaced;;shoulders 1'` which letter, together ;with the 'adjacent .i I portions 'of the band, 'form: Channels for the upper 'edges of'. said omembe'rs, the lower.

edges ofsaid bandbeingformed with clinv i nels into which thelower edges ofsaidfmem r i i bers extend,said members snugly fitting'in i' said Channels',` andxalin'ing perforations in said members and* those portions of said] bere, andsaid members'a nd band containing& ahnng' *perforationsa ofsubstantally'= the same* diameter, the perforations in said band i extending through the -portions thereofboth at the' inside an'd' outside of 'said' members whereby a relatively wide: hearing-,is provided :LGIQ S ROBINSOS i fiv'e cents each, ;by addressing the commissionr f Patents; i Washington, '10. WC." u v i i 

